US 11,691,346 B2Granted

System and method for selectively post-curing parts printed with stereolithography additive manufacturing techniques

AssigneeSprintRay, Inc.

InventorsAmir Mansouri, Hossein Bassir, Aayush Patel, Huijian Tian

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Abstract

The present subject matter is directed towards a system and a method for selectively post-curing a three-dimensional (3D-printed) object to attain variable properties. The system comprises a selective post-curing chamber coupled to a computer in communication with a database for accessing a digital model or data concerning the 3D-printed object. The chamber comprises a movable light source assembly and a mounting platform for supporting at least one 3D-printed object thereon. The computer includes one or more executable instructions for selectively emitting a curing light onto the 3D-printed object along a predetermined curing toolpath based on the digital model. The curing of the 3D-printed object along the predetermined curing toolpath generates variable properties along different regions of the 3D-printed object.

Claims25

Dependent claims

A system for post-curing a three-dimensionally printed (3D-printed) object, comprising:

a chamber;
a platform arranged within the chamber for supporting at least one 3D-printed object, the at least one 3D-printed object including a first side and a second side opposite the first side;
a light source assembly configured to emit one or more wavelengths of curing light onto the 3D-printed object, wherein the light source assembly includes at least one first light source configured to illuminate at least a portion of the first side of the 3D-printed object from a first direction and at least one second light source configured to simultaneously illuminate at least a portion of the second side of the 3D-printed object from a second direction;
and
a movement module configured to move the light source assembly to expose the first side and the second side of the 3D printed object to the curing light.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/902,221Filed 2 Sep 2022 · continuation
Priority: 25 Sep 2020
Published: US 2022/0410492 A129 Dec 2022
Granted: 4 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification43 codes

B29C 64/393
Data acquisition or data processing for additive manufacturing: for controlling or regulating additive manufacturing processes
B22F 10/85
Data acquisition or data processing: for controlling or regulating additive manufacturing processes
B22F 12/00
Apparatus or devices specially adapted for additive manufacturing
B22F 12/82
Plants, production lines or modules: combination of additive manufacturing apparatus or devices with other processing apparatus or devices

Family

Application63/083,772Us provisional application · filed 25 Sep 2020
Application17/511,881Parent of this continuation · filed 27 Oct 2021
US 2022/0410492 A1Pre-grant publication · published 29 Dec 2022
US 11,433,619 B1Parent of this continuation
US 11,691,346 B2This patent

From the US filing history. Foreign family members aren’t listed.